This file is raw output from pdftotext and may not be ideal for distribution. If you are a maintainer for Hackipedia, please sit down when you have time and clean this text version up. Source PDF: /mnt/main/jmc-storage/docs/SCTE/ANSI SCTE 009 Test Method for Cold Bend (2010).pdf Like all conversions the text below should be fully readable as UTF-8 unicode text. --------------------------------------------------------------- ENGINEERING COMMITTEE Interface Practices Subcommittee AMERICAN NATIONAL STANDARD ANSI/SCTE 09 2010 Test Method for Cold Bend NOTICE The Society of Cable Telecommunications Engineers (SCTE) Standards are intended to serve the public interest by providing specifications, test methods and procedures that promote uniformity of product, interchangeability and ultimately the long term reliability of broadband communications facilities. These documents shall not in any way preclude any member or nonmember of SCTE from manufacturing or selling products not conforming to such documents, nor shall the existence of such standards preclude their voluntary use by those other than SCTE members, whether used domestically or internationally. SCTE assumes no obligations or liability whatsoever to any party who may adopt the Standards. Such adopting party assumes all risks associated with adoption of these Standards or Recommended Practices, and accepts full responsibility for any damage and/or claims arising from the adoption of such Standards or Recommended Practices. Attention is called to the possibility that implementation of this standard may require use of subject matter covered by patent rights. By publication of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. SCTE shall not be responsible for identifying patents for which a license may be required or for conducting inquires into the legal validity or scope of those patents that are brought to its attention. Patent holders who believe that they hold patents which are essential to the implementation of this standard have been requested to provide information about those patents and any related licensing terms and conditions. Any such declarations made before or after publication of this document are available on the SCTE web site at http://www.scte.org. All Rights Reserved © 2005, 2010 Society of Cable Telecommunications Engineers, Inc. 2010 140 Philips Road Exton, PA 19341 i Table of Contents 1.0 Scope 1 2.0 Equipment 1 3.0 Diagram 1 4.0 Test Samples 2 5.0 Measurements of Test Method 2 6.0 Inspection 2 7.0 Record; Table 1 3 ii 1.0 SCOPE The purpose of this procedure is to provide instructions on testing the cold bend properties of flexible outdoor polyvinyl chloride (PVC) or polyethylene (PE) cable. 2.0 EQUIPMENT 2.1. An environmental chamber having size, dimension and temperatures capable of performing the test described herein. The environmental chamber must be capable of maintaining PVC conditioning temperatures from -40 C 1 C (-40 F 1.8 F ) for 24 hours or for PE -55 C 1 C , (-67 F 1.8 F ) for 24 hours. 2.2. Test mandrels having a diameter that is ten times the Cable Diameter (10 x Nominal Cable Diameter) rounded to the nearest ½ inch 5%. For example, for 6 Series Quadshield cable with an outside diameter of 0.297 inches, requires a mandrel overall diameter of 3.0 inches 5%. 3.0 DIAGRAM Figure 1 – Test Fixture 1 4.0 TEST SAMPLES The cable sample should be long enough to make 4 complete wraps around the mandrel as defined in paragraph 2.2. 5.0 MEASUREMENTS OR TEST METHOD 5.1. One end of cable sample shall be clamped onto the mandrel which has a diameter in accordance with paragraph 2.2. Wrap the cable sample around the mandrel for one full turn and place in an environmental chamber in accordance with paragraph 2.1 and conditioned for 2 hours minimum at the desired test temperature. (Note: Refer to the cable specification or test protocol for test temperature; i.e. ANSI/SCTE 74 2003). During the conditioning period, the unwrapped portion of the cable sample shall be kept reasonably straight. This can be achieved by attaching a small weight (2 to 5 pounds) to the end of the cable sample (see Figure 1). 5.2. After the conditioning period and while the cable sample is still at the test temperature, the cable sample shall be wrapped around the mandrel for three (3) full and close turns. The mandrel shall be turned at a uniform rate of 15 3 revolutions per minute during this operation. 5.3. After the cable sample has been wrapped around the mandrel, open environmental chamber door and remove the mandrel and cable sample from the environmental chamber without disturbing the cable sample. Condition cable sample at room temperature for 1 hour minimum. 6.0 INSPECTION 6.1. Unwind the cable sample from the mandrel and examine for cracks, flaws or other damage in the jacket material excluding the area of the cable sample that was clamped to the mandrel and or weight. Any cracks, flaws or other damage are cause for failure. 6.2. Record the sample identification, jacket type, diameter over jacket (DOJ), mandrel diameter, and visual inspection recording if the sample passed or failed as outlined in table 1. 2 7.0 RECORD Test Sample Jacket Type DOJ Mandrel Diameter Failure Mode Pass Fail Date Table 1. 3